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Ford 2015 F-Series Super Duty lineup features 2nd-gen 6.7L Power Stroke V8 diesel; also on MY 2016 F-650/F-750 medium-duty trucks

Ford’s MY 2015 F-Series Super Duty heavy-duty pickup trucks feature engine and chassis upgrades that together deliver best-in-class horsepower, torque and towing capacity. Ford’s second-generation 6.7-liter Power Stroke V8 turbo diesel now offers 440 horsepower (328 kW), up from 400 horsepower (298 kW), and 860 lb-ft (1,166 N·m) of torque, up from 800 lb-ft (1,085 N·m), across all Super Duty models from F-250 to F-450.

The new engine will also be featured on the MY 2016 F-650 and F-750 medium-duty trucks, available in spring 2015. The current F-650/F-750 models offer the Cummins ISB 6.7L turbo diesel in addition to Ford’s 6.8L V-10 gasoline engine. “The 6.7-liter Power Stroke was already a stout engine. The improvements we’ve made essentially give Super Duty customers an engine designed for our larger F-650 and F-750 trucks, said Robert Fascetti, Ford vice president powertrain engineering.

F-Series Super Duty. Click to enlarge.

The 2015 F-450 tops the F-Series Super Duty pickup truck lineup with maximum towing capacity increasing to a class-leading 31,200 pounds, a gain of 6,500 pounds. The truck’s gross combined weight rating increases to a class-leading 40,000 pounds, a gain of 7,000 pounds.

F-350 increases maximum towing capacity as well, to 26,500 pounds, from 23,200 pounds, and the gross combined weight rating goes up 5,000 pounds to 35,000 pounds.

The improved ratings are a result of designing and engineering the truck as an integrated system. The approach enabled Ford engineers to optimize performance across the full Super Duty lineup.

Power Stroke engine improvements. The 2015 Super Duty achieves towing performance with a second-generation 6.7-liter Power Stroke V8 turbo diesel engine that was further developed to provide more power, torque and efficiency.

Key innovations on the 6.7-liter Power Stroke V8 turbo diesel are its compacted graphite iron engine block and reverse-flow layout. This segment-exclusive design places the exhaust inside the engine’s V-shape, with while the air intake positioned on the outside resulting in a variety of advancements:

  • Shorter airflow from the exhaust system to the new, larger turbocharger sitting between the engine’s cylinder banks improves turbo responsiveness.

  • Positioning the turbo inside the engine’s valley helps isolate the engine’s hottest temperatures, improving performance and efficiency, while also reducing noise, vibration and harshness to improve driver comfort,

Enhancements include a larger turbocharger for faster air displacement resulting in more power. The engine block is made of compacted graphite iron, which is stronger yet lighter than cast iron, is more wear-resistant and has enhanced sealing properties.

New injector tips spray a finer mist of fuel into the cylinders which provides a more complete burn and helps reduce noise, vibration and harshness. Other benefits include lower emissions and less fuel deposit buildup on the intake valves over time.

MY 2016 F-650/F-750. Click to enlarge.

F-650/F-750.The new F-650/F-750 features the second-generation 6.7-liter Power Stroke V8 diesel paired with a commercial-grade six-speed 6R140 automatic transmission with available power takeoff provision to run accessories in the field, a dump body, crane or other vocational equipment.

Ford is the only medium-duty truck manufacturer that designs and builds its own diesel engine and transmission combination.

Power Stroke drivability is enhanced with tow/haul mode that includes a switchable integrated engine brake. The driver can regenerate the diesel particulate filter on-demand to clear out trapped soot from the exhaust system to help maximize performance. Intelligent Oil Change Monitoring is standard so oil changes are based on driving patterns and load demands instead of fixed distance intervals.

The fuel-efficient transmission features a low first gear ratio for optimized takeoffs under load and optimized gear ratio span across all gears for optimized fuel economy. It’s also strengthened with new materials and extra pinion gears for medium-duty service.

Ford remains the segment-exclusive automaker to offer a gasoline-powered engine for a medium duty truck. The 6.8-liter V10 is now available for both F-650 and F-750 models with the 6R140 six-speed automatic transmission. The 6.8-liter V10 can be factory-prepped for converting to compressed natural gas or liquid propane gas as cost-effective alternatives to unleaded gasoline.



I'm surprised a truck as big as the F-650/750 can still be powered by a big petrol engine. I know there is some issues with Diesels and emission laws in the US but it just seems like one massive anachronism. I sometimes wonder what would happen to the US pickup/truck market and the Big 3 if the US brought down its 25% excise on imports.



Lots of big imported trucks in the US commercial truck market. The F650 competes with Mitsubishi Fuso and Isuzu.

I think that the Propane/CNG option is key for the petrol engines. That can represent a significant savings for fleets that have access to those fuels, and it's much preferred in applications where workers or customers will be directly exposed to exhaust fumes. It's common in airport vans, for instance.


Nice car for commuting in the USA!

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